HP 8340A Service Manual page 164

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PHASE LOCK LOOP UP CONVERTER
A39 3 (PLL3)
08340-60045
@ FREQUENCY MULTIPLIER XI
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IF AMPLIFIER
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1000
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Scans by HB9HCA and HB9FSX
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160 TO 166MHz VCO
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PHASE/FREQUENCY
DETECTOR
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1960
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10
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FROM A40 PLL2 VCO J3 111
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Ill
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1960
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m
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eel
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• • •
N OTES
I. REFER TO THE SERVICE SF.CTION
INTRODUCTION l'OR OETA.IL E D SCHEMATIC
DIAGRAM SYMBOLOGY NOTES.
2, RESISTANCE VALUES ARE HI
OHMS, CAP�CITMICE IN
l.IICRO�ARADS, AND INDUCTANCE
IN l.IICROHENRIES UNLESS
OTHERWISE NOTED,
,J�,
3. JI ANO A39WI CENTER
CONIJUCTQRS ARE CLECTRICAl.l.Y
CONNECTED TD THE PC BOARD
®LOOP AMPLIFIER THROUGH SOLOE�E!l 2 4 GAUAGE
FINE 1\'IRF.S, THEJR OUTER
CONDUCTORS ARE CONNECTED
OUT-OF-RANGE TO PC BOARD GROUND THROUGH
� �
CORR[CTOR
MECH�NlCAL SCRl'.11 CONNECTIONS
IN THE ASSE�SLY COVER PLATE.
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j
JI: 160�166MKi
160-IBBMHz
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6 ff2
I
R 1 3
PLLI fll2
IF
5110 8250
UI
B
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IOVFz
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31
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1000 1000
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U4A
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PHASE LOCK INDICATOR
4700
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51. I "
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-IOVFz
ON•
LOCKED
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____
-
Figure 8C-22. A39 PLLJ Upconverter, Schematic Diagram
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